save project

diy.py

@@ -6,10 +6,11 @@
 # file1.write("李文:9\n")
 # file1.write("张伟:16\n")
 # file1.close()
-with open(r"C:\\Users\\BBTC\\Desktop\\book.txt","a",encoding="utf-8")as file:
-    file.write("小兰:12\n")
-    file.write("小丽:11\n")
 
+with open(r"C:\\Users\\BBTC\\Desktop\\book.txt","r",encoding="utf-8")as file:
+    for data in file:
+        if "小兰:12" in data:
+            print("在")